Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Apache License 

public class Main {
    public static double getPPI(int w_pixels, int h_pixels, float diagonal_size) {
        if (w_pixels <= 0 || h_pixels <= 0 || diagonal_size <= 0) {
            return -1.0;
        }
        return Math.sqrt(w_pixels * w_pixels + h_pixels * h_pixels) / diagonal_size;
    }
}